The following technical wiring specifications have been compiled and tested by Syrex Intranets. This information
is primarily usefull to support engineers, and IT professionals, that are wanting to construct or check certain
network or cable configurations.

The pinouts are for RJ45 8pin sockets. The terminology T and R comes from the
old telecom days of 'Tip' and 'Ring' of jack plugs and corrosponds to
the +ve and -ve on the twisted pair of cables and not Transmit and Receive of
ethernet data!

colour stripe = Tip = +ve ; solid colour = Ring = -ve

Old CAT3 10Base-T only needs two pairs of would often be shown wired using pairs
#1 and #2. It is however alternatively also shown to be wired using just pairs
#2 and #3 as a subset of the more modern EIA568B (again all electrically compatible
- just pair number and colour codes changed).

The pinouts are for RJ45 8pin sockets. The terminology T and R comes from the
old telecom days of 'Tip' and 'Ring' of jack plugs and corrosponds to
the +ve and -ve on the twisted pair of cables and not Transmit and Receive of
ethernet data!

colour stripe = Tip = +ve ; solid colour = Ring = -ve

The CAT5 sockets (ModTap) supplied by RS are generally colour coded to the EIA568B
standard (which was the old AT&T 258A standard).

The pinouts are for RJ45 8pin sockets. The terminology T and R comes from the
old telecom days of 'Tip' and 'Ring' of jack plugs and corrosponds to
the +ve and -ve on the twisted pair of cables and not Transmit and Receive of
ethernet data!

colour stripe = Tip = +ve ; solid colour = Ring = -ve

The CAT5 sockets (ModTap) supplied by RS are generally colour coded to the EIA568B
standard (which was the old AT&T 258A standard). In crossover cabling T1 connects
to R4, T2 to R3, T3 to R2 and T4 to R1.

The pinouts are for RJ45 8pin sockets. The terminology T and R comes from the
old telecom days of 'Tip' and 'Ring' of jack plugs and corrosponds to
the +ve and -ve on the twisted pair of cables and not Transmit and Receive of
ethernet data!

colour stripe = Tip = +ve ; solid colour = Ring = -ve

The CAT5 sockets (ModTap) supplied by RS are generally colour coded to the EIA568B
standard (which was the old AT&T 258A standard). ISDN is generally wired to the
EIA568A (100Base-TX) standard. This is electrically compatible to EIA568B but the
pair and color codes of 2 and 3 are swapped around.

The pinouts are for RJ45 8pin sockets. The terminology T and R comes from the
old telecom days of 'Tip' and 'Ring' of jack plugs and corrosponds to
the +ve and -ve on the twisted pair of cables and not Transmit and Receive of
ethernet data!

One connector is assembled from each side of the hyphens. This is the wiring diagram
for the cable necessary to link two machines together by their parallel ports for a
LapLink connection. You can also use such a cable in combination with the PLIP packet
driver to simulate an Ethernet running on two machines. FastLynx is another program
that enables communication between PCs via a parallel cable.